chore(deps): update keycloak

This MR contains the following updates:

Package	Update	Change
bb-common	patch	0.14.1 -> 0.14.2
postgresql (source)	patch	18.5.11 -> 18.5.15
registry1.dso.mil/ironbank/opensource/keycloak/keycloak (source)	patch	26.5.6 -> 26.5.7

Complete MR checklist

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• Followed upgrade instructions outlined in docs/DEVELOPMENT_MAINTENANCE.md
• Update Docs with new/updated steps as needed
• Tested and Validated Changes made with supporting info like logs or screenshots from test pipelines

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#293 (closed)

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• Tested and Validated changes

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Upgrade Notices

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